Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

Averages are used all the time in finance, usually to justify performance (above average'). However, as an investor, youshould realise there are several ways to calculate an average.The three most ...

Start with three numbers, say 5, 17, and 23. Their median (middle value) is 17. Find a fourth number so that the mean of all four is 17. This number must be 23 (4 x 17 – 5 – 17 – 23). Repeat the ...

It may be useful to compare two sets of data using the mean, mode or median in order to draw conclusions about the information presented. You may be choosing one measure over another for its accuracy ...

Aug. 6, 2006 — -- Believe it or not, the difference in the way the Democrats and Republicans react to the performance of the U.S. economy is clarified by a mathematical distinction studied in ...

An animated guide to mean, median and mode. The Clappy Boys need to have the right average age to be accepted for a recording contract. This clip demonstrates that the different types of average can ...